Adeonella sparassis Ortmann, 1890 accepted as Adeonellopsis sparassis (Ortmann, 1890) (original description)
Bugula hexacantha Ortmann, 1890 (original description)
Bugula lophodendron Ortmann, 1890 (original description)
Caberea bursifera Ortmann, 1890 (original description)
Caberea climacina Ortmann, 1890 (original description)
Cellepora attenuata Ortmann, 1890 accepted as Turbicellepora attenuata (Ortmann, 1890) (original description)
Cellepora bicirrhata Ortmann, 1890 accepted as Celleporaria bicirrhata (Ortmann, 1890) (original description)
Cribrilina reniformis Ortmann, 1890 (original description)
Crisia crisidioides Ortmann, 1890 (original description)
Cyclostomella Ortmann, 1890 (original description)
Cyclostomella articulata Ortmann, 1890 (original description)
Diporula coronula Ortmann, 1890 accepted as Hippomenella coronula (Ortmann, 1890) (original description)
Entalophora conferta Ortmann, 1890 (original description)
Entalophora crassa Ortmann, 1890 (original description)
Escharoides rhomboidalis Ortmann, 1890 accepted as Buchneria rhomboidalis (Ortmann, 1890) (original description)
Escharoides teres Ortmann, 1890 accepted as Buchneria teres (Ortmann, 1890) (original description)
Fasciculipora carinata Ortmann, 1890 (original description)
Fasciculipora simplex Ortmann, 1890 (original description)
Hippothoa connata Ortmann, 1890 accepted as Cribellopora connata (Ortmann, 1890) (original description)
Hornera cerviformis Ortmann, 1890 (original description)
Hypocytis Ortmann, 1890 (original description)
Hypocytis asteriscus Ortmann, 1890 (original description)
Idmonea falciformis Ortmann, 1890 (original description)
Idmonea tenella Ortmann, 1890 accepted as Exidmonea flexuosa (Pourtalès, 1867) (original description)
Lepralia acuta Ortmann, 1890 accepted as Metroperiella montferrandii (Audouin, 1826) (original description)
Lichenopora conica Ortmann, 1890 (original description)
Membraniporina (original description)
Menipea integra Ortmann, 1890 (original description)
Microporella dimidiata Ortmann, 1890 (original description)
Myriozoum superficiale Ortmann, 1890 (original description)
Onchoporella selenoides Ortmann, 1890 (original description)
Porella areolata Ortmann, 1890 (original description)
Porella fissurata Ortmann, 1890 accepted as Cigclisula fissurata (Ortmann, 1890) (original description)
Porella transversalis Ortmann, 1890 (original description)
Retepora anatina Ortmann, 1890 (original description)
Retepora axillaris Ortmann, 1890 accepted as Iodictyum axillare (Ortmann, 1890) (original description)
Retepora bimunita Ortmann, 1890 accepted as Triphyllozoon bimunitum (Ortmann, 1890) (original description)
Retepora cornuta Ortmann, 1890 (original description)
Reteporella dendroides Ortmann, 1890 (original description)
Reteporella minor Ortmann, 1890 (original description)
Reteporella peripherica Ortmann, 1890 (original description)
Schizoporella aterrima Ortmann, 1890 accepted as Watersipora aterrima (Ortmann, 1890) (original description)
Schizoporella aterrima var. subatra Ortmann, 1890 accepted as Watersipora subatra (Ortmann, 1890) (original description)
Schizoporella brunnescens Ortmann, 1890 (original description)
Schizoporella japonica Ortmann, 1890 (original description)
Schizoporella nuda Ortmann, 1890 (original description)
Schizoporella oenochros Ortmann, 1890 (original description)
Schizoporella subhexagona Ortmann, 1890 accepted as Woosukia subhexagona (Ortmann, 1890) (original description)
Smittia adeonelloides Ortmann, 1890 accepted as Escharoides adeonelloides (Ortmann, 1890) (original description)
Tremopora Ortmann, 1890 (original description)
Tremopora dendracantha Ortmann, 1890 (original description)
Tubulipora continua Ortmann, 1890 (original description)